Sit-to stand ground reaction force changes after hip resurfacing or total hip replacement: a pilot study

Ewen, Alistair, Kashyap, Shankar, Banaszkiewicz, Paul, St Clair Gibson, Alan and Caplan, Nick (2011) Sit-to stand ground reaction force changes after hip resurfacing or total hip replacement: a pilot study. In: International Society of Biomechanics Congress (ISB2011), 3-7 July 2013, Brussels, Belgium.

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Abstract

Two groups of osteoarthritis patients had their ground reaction forces measured during a sit-to-stand task at three months post-operation. One group had a 32mm femoral head fitted during a total hip replacement procedure and the other group had a hip resurfacing procedure. Three validated orthopaedic score questionnaires and an activity questionnaire were completed prior to surgery and at three months post-operation. This pilot study showed that there were no significant differences in the ground reaction forces in the operated and non-operated limb between the groups although both groups exhibited significantly higher ground reaction forces on the non-operated limb compared to the operated one. None of the orthopaedic scores showed any significant differences between the groups, despite the resurfacing group reporting higher levels of sporting activity at three months postoperation.

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